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        <a href="../.." >Navigatror 对象，Screen 对象</a>
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                                <section class="normal markdown-section">
                                
                                <h1 id="navigator-&#x5BF9;&#x8C61;&#xFF0C;screen-&#x5BF9;&#x8C61;&#x3002;">Navigator &#x5BF9;&#x8C61;&#xFF0C;Screen &#x5BF9;&#x8C61;&#x3002;</h1>
<p><code>window.navigator</code>&#x5C5E;&#x6027;&#x6307;&#x5411;&#x4E00;&#x4E2A;&#x5305;&#x542B;&#x6D4F;&#x89C8;&#x5668;&#x548C;&#x7CFB;&#x7EDF;&#x4FE1;&#x606F;&#x7684; Navigator &#x5BF9;&#x8C61;&#x3002;&#x811A;&#x672C;&#x901A;&#x8FC7;&#x8FD9;&#x4E2A;&#x5C5E;&#x6027;&#x4E86;&#x89E3;&#x7528;&#x6237;&#x7684;&#x73AF;&#x5883;&#x4FE1;&#x606F;&#x3002;</p>
<h2 id="navigator-&#x5BF9;&#x8C61;&#x7684;&#x5C5E;&#x6027;">Navigator &#x5BF9;&#x8C61;&#x7684;&#x5C5E;&#x6027;</h2>
<h3 id="navigatoruseragent">Navigator.userAgent</h3>
<p><code>navigator.userAgent</code>&#x5C5E;&#x6027;&#x8FD4;&#x56DE;&#x6D4F;&#x89C8;&#x5668;&#x7684; User Agent &#x5B57;&#x7B26;&#x4E32;&#xFF0C;&#x8868;&#x793A;&#x6D4F;&#x89C8;&#x5668;&#x7684;&#x5382;&#x5546;&#x548C;&#x7248;&#x672C;&#x4FE1;&#x606F;&#x3002;</p>
<p>&#x4E0B;&#x9762;&#x662F; Chrome &#x6D4F;&#x89C8;&#x5668;&#x7684;<code>userAgent</code>&#x3002;</p>
<pre><code class="lang-javascript">navigator.userAgent
<span class="hljs-comment">// &quot;Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/29.0.1547.57 Safari/537.36&quot;</span>
</code></pre>
<p>&#x901A;&#x8FC7;<code>userAgent</code>&#x5C5E;&#x6027;&#x8BC6;&#x522B;&#x6D4F;&#x89C8;&#x5668;&#xFF0C;&#x4E0D;&#x662F;&#x4E00;&#x4E2A;&#x597D;&#x529E;&#x6CD5;&#x3002;&#x56E0;&#x4E3A;&#x5FC5;&#x987B;&#x8003;&#x8651;&#x6240;&#x6709;&#x7684;&#x60C5;&#x51B5;&#xFF08;&#x4E0D;&#x540C;&#x7684;&#x6D4F;&#x89C8;&#x5668;&#xFF0C;&#x4E0D;&#x540C;&#x7684;&#x7248;&#x672C;&#xFF09;&#xFF0C;&#x975E;&#x5E38;&#x9EBB;&#x70E6;&#xFF0C;&#x800C;&#x4E14;&#x7528;&#x6237;&#x53EF;&#x4EE5;&#x6539;&#x53D8;&#x8FD9;&#x4E2A;&#x5B57;&#x7B26;&#x4E32;&#x3002;&#x8FD9;&#x4E2A;&#x5B57;&#x7B26;&#x4E32;&#x7684;&#x683C;&#x5F0F;&#x5E76;&#x65E0;&#x7EDF;&#x4E00;&#x89C4;&#x5B9A;&#xFF0C;&#x4E5F;&#x65E0;&#x6CD5;&#x4FDD;&#x8BC1;&#x672A;&#x6765;&#x7684;&#x9002;&#x7528;&#x6027;&#xFF0C;&#x5404;&#x79CD;&#x4E0A;&#x7F51;&#x8BBE;&#x5907;&#x5C42;&#x51FA;&#x4E0D;&#x7A77;&#xFF0C;&#x96BE;&#x4EE5;&#x7A77;&#x5C3D;&#x3002;&#x6240;&#x4EE5;&#xFF0C;&#x73B0;&#x5728;&#x4E00;&#x822C;&#x4E0D;&#x518D;&#x901A;&#x8FC7;&#x5B83;&#x8BC6;&#x522B;&#x6D4F;&#x89C8;&#x5668;&#x4E86;&#xFF0C;&#x800C;&#x662F;&#x4F7F;&#x7528;&#x201C;&#x529F;&#x80FD;&#x8BC6;&#x522B;&#x201D;&#x65B9;&#x6CD5;&#xFF0C;&#x5373;&#x9010;&#x4E00;&#x6D4B;&#x8BD5;&#x5F53;&#x524D;&#x6D4F;&#x89C8;&#x5668;&#x662F;&#x5426;&#x652F;&#x6301;&#x8981;&#x7528;&#x5230;&#x7684; JavaScript &#x529F;&#x80FD;&#x3002;</p>
<p>&#x4E0D;&#x8FC7;&#xFF0C;&#x901A;&#x8FC7;<code>userAgent</code>&#x53EF;&#x4EE5;&#x5927;&#x81F4;&#x51C6;&#x786E;&#x5730;&#x8BC6;&#x522B;&#x624B;&#x673A;&#x6D4F;&#x89C8;&#x5668;&#xFF0C;&#x65B9;&#x6CD5;&#x5C31;&#x662F;&#x6D4B;&#x8BD5;&#x662F;&#x5426;&#x5305;&#x542B;<code>mobi</code>&#x5B57;&#x7B26;&#x4E32;&#x3002;</p>
<pre><code class="lang-javascript"><span class="hljs-keyword">var</span> ua = navigator.userAgent.toLowerCase();

<span class="hljs-keyword">if</span> (<span class="hljs-regexp">/mobi/i</span>.test(ua)) {
  <span class="hljs-comment">// &#x624B;&#x673A;&#x6D4F;&#x89C8;&#x5668;</span>
} <span class="hljs-keyword">else</span> {
  <span class="hljs-comment">// &#x975E;&#x624B;&#x673A;&#x6D4F;&#x89C8;&#x5668;</span>
}
</code></pre>
<p>&#x5982;&#x679C;&#x60F3;&#x8981;&#x8BC6;&#x522B;&#x6240;&#x6709;&#x79FB;&#x52A8;&#x8BBE;&#x5907;&#x7684;&#x6D4F;&#x89C8;&#x5668;&#xFF0C;&#x53EF;&#x4EE5;&#x6D4B;&#x8BD5;&#x66F4;&#x591A;&#x7684;&#x7279;&#x5F81;&#x5B57;&#x7B26;&#x4E32;&#x3002;</p>
<pre><code class="lang-javascript">/mobi|android|touch|mini/i.test(ua)
</code></pre>
<h3 id="navigatorplugins">Navigator.plugins</h3>
<p><code>Navigator.plugins</code>&#x5C5E;&#x6027;&#x8FD4;&#x56DE;&#x4E00;&#x4E2A;&#x7C7B;&#x4F3C;&#x6570;&#x7EC4;&#x7684;&#x5BF9;&#x8C61;&#xFF0C;&#x6210;&#x5458;&#x662F; Plugin &#x5B9E;&#x4F8B;&#x5BF9;&#x8C61;&#xFF0C;&#x8868;&#x793A;&#x6D4F;&#x89C8;&#x5668;&#x5B89;&#x88C5;&#x7684;&#x63D2;&#x4EF6;&#xFF0C;&#x6BD4;&#x5982; Flash&#x3001;ActiveX &#x7B49;&#x3002;</p>
<pre><code class="lang-javascript"><span class="hljs-keyword">var</span> pluginsLength = navigator.plugins.length;

<span class="hljs-keyword">for</span> (<span class="hljs-keyword">var</span> i = <span class="hljs-number">0</span>; i &lt; pluginsLength; i++) {
  <span class="hljs-built_in">console</span>.log(navigator.plugins[i].name);
  <span class="hljs-built_in">console</span>.log(navigator.plugins[i].filename);
  <span class="hljs-built_in">console</span>.log(navigator.plugins[i].description);
  <span class="hljs-built_in">console</span>.log(navigator.plugins[i].version);
}
</code></pre>
<h3 id="navigatorplatform">Navigator.platform</h3>
<p><code>Navigator.platform</code>&#x5C5E;&#x6027;&#x8FD4;&#x56DE;&#x7528;&#x6237;&#x7684;&#x64CD;&#x4F5C;&#x7CFB;&#x7EDF;&#x4FE1;&#x606F;&#xFF0C;&#x6BD4;&#x5982;<code>MacIntel</code>&#x3001;<code>Win32</code>&#x3001;<code>Linux x86_64</code>&#x7B49; &#x3002;</p>
<pre><code class="lang-javascript">navigator.platform
<span class="hljs-comment">// &quot;Linux x86_64&quot;</span>
</code></pre>
<h3 id="navigatoronline">Navigator.onLine</h3>
<p><code>navigator.onLine</code>&#x5C5E;&#x6027;&#x8FD4;&#x56DE;&#x4E00;&#x4E2A;&#x5E03;&#x5C14;&#x503C;&#xFF0C;&#x8868;&#x793A;&#x7528;&#x6237;&#x5F53;&#x524D;&#x5728;&#x7EBF;&#x8FD8;&#x662F;&#x79BB;&#x7EBF;&#xFF08;&#x6D4F;&#x89C8;&#x5668;&#x65AD;&#x7EBF;&#xFF09;&#x3002;</p>
<pre><code class="lang-javascript">navigator.onLine <span class="hljs-comment">// true</span>
</code></pre>
<p>&#x6709;&#x65F6;&#xFF0C;&#x6D4F;&#x89C8;&#x5668;&#x53EF;&#x4EE5;&#x8FDE;&#x63A5;&#x5C40;&#x57DF;&#x7F51;&#xFF0C;&#x4F46;&#x662F;&#x5C40;&#x57DF;&#x7F51;&#x4E0D;&#x80FD;&#x8FDE;&#x901A;&#x5916;&#x7F51;&#x3002;&#x8FD9;&#x65F6;&#xFF0C;&#x6709;&#x7684;&#x6D4F;&#x89C8;&#x5668;&#x7684;<code>onLine</code>&#x5C5E;&#x6027;&#x4F1A;&#x8FD4;&#x56DE;<code>true</code>&#xFF0C;&#x6240;&#x4EE5;&#x4E0D;&#x80FD;&#x5047;&#x5B9A;&#x53EA;&#x8981;&#x662F;<code>true</code>&#xFF0C;&#x7528;&#x6237;&#x5C31;&#x4E00;&#x5B9A;&#x80FD;&#x8BBF;&#x95EE;&#x4E92;&#x8054;&#x7F51;&#x3002;&#x4E0D;&#x8FC7;&#xFF0C;&#x5982;&#x679C;&#x662F;<code>false</code>&#xFF0C;&#x53EF;&#x4EE5;&#x65AD;&#x5B9A;&#x7528;&#x6237;&#x4E00;&#x5B9A;&#x79BB;&#x7EBF;&#x3002;</p>
<p>&#x7528;&#x6237;&#x53D8;&#x6210;&#x5728;&#x7EBF;&#x4F1A;&#x89E6;&#x53D1;<code>online</code>&#x4E8B;&#x4EF6;&#xFF0C;&#x53D8;&#x6210;&#x79BB;&#x7EBF;&#x4F1A;&#x89E6;&#x53D1;<code>offline</code>&#x4E8B;&#x4EF6;&#xFF0C;&#x53EF;&#x4EE5;&#x901A;&#x8FC7;<code>window.ononline</code>&#x548C;<code>window.onoffline</code>&#x6307;&#x5B9A;&#x8FD9;&#x4E24;&#x4E2A;&#x4E8B;&#x4EF6;&#x7684;&#x56DE;&#x8C03;&#x51FD;&#x6570;&#x3002;</p>
<pre><code class="lang-javascript"><span class="hljs-built_in">window</span>.addEventListener(<span class="hljs-string">&apos;offline&apos;</span>, <span class="hljs-function"><span class="hljs-keyword">function</span>(<span class="hljs-params">e</span>) </span>{ <span class="hljs-built_in">console</span>.log(<span class="hljs-string">&apos;offline&apos;</span>); });
<span class="hljs-built_in">window</span>.addEventListener(<span class="hljs-string">&apos;online&apos;</span>, <span class="hljs-function"><span class="hljs-keyword">function</span>(<span class="hljs-params">e</span>) </span>{ <span class="hljs-built_in">console</span>.log(<span class="hljs-string">&apos;online&apos;</span>); });
</code></pre>
<h3 id="navigatorlanguage&#xFF0C;navigatorlanguages">Navigator.language&#xFF0C;Navigator.languages</h3>
<p><code>Navigator.language</code>&#x5C5E;&#x6027;&#x8FD4;&#x56DE;&#x4E00;&#x4E2A;&#x5B57;&#x7B26;&#x4E32;&#xFF0C;&#x8868;&#x793A;&#x6D4F;&#x89C8;&#x5668;&#x7684;&#x9996;&#x9009;&#x8BED;&#x8A00;&#x3002;&#x8BE5;&#x5C5E;&#x6027;&#x53EA;&#x8BFB;&#x3002;</p>
<pre><code class="lang-javascript">navigator.language <span class="hljs-comment">// &quot;en&quot;</span>
</code></pre>
<p><code>Navigator.languages</code>&#x5C5E;&#x6027;&#x8FD4;&#x56DE;&#x4E00;&#x4E2A;&#x6570;&#x7EC4;&#xFF0C;&#x8868;&#x793A;&#x7528;&#x6237;&#x53EF;&#x4EE5;&#x63A5;&#x53D7;&#x7684;&#x8BED;&#x8A00;&#x3002;<code>Navigator.language</code>&#x603B;&#x662F;&#x8FD9;&#x4E2A;&#x6570;&#x7EC4;&#x7684;&#x7B2C;&#x4E00;&#x4E2A;&#x6210;&#x5458;&#x3002;HTTP &#x8BF7;&#x6C42;&#x5934;&#x4FE1;&#x606F;&#x7684;<code>Accept-Language</code>&#x5B57;&#x6BB5;&#xFF0C;&#x5C31;&#x6765;&#x81EA;&#x8FD9;&#x4E2A;&#x6570;&#x7EC4;&#x3002;</p>
<pre><code class="lang-javascript">navigator.languages  <span class="hljs-comment">// [&quot;en-US&quot;, &quot;en&quot;, &quot;zh-CN&quot;, &quot;zh&quot;, &quot;zh-TW&quot;]</span>
</code></pre>
<p>&#x5982;&#x679C;&#x8FD9;&#x4E2A;&#x5C5E;&#x6027;&#x53D1;&#x751F;&#x53D8;&#x5316;&#xFF0C;&#x5C31;&#x4F1A;&#x5728;<code>window</code>&#x5BF9;&#x8C61;&#x4E0A;&#x89E6;&#x53D1;<code>languagechange</code>&#x4E8B;&#x4EF6;&#x3002;</p>
<h3 id="navigatorgeolocation">Navigator.geolocation</h3>
<p><code>Navigator.geolocation</code>&#x5C5E;&#x6027;&#x8FD4;&#x56DE;&#x4E00;&#x4E2A; Geolocation &#x5BF9;&#x8C61;&#xFF0C;&#x5305;&#x542B;&#x7528;&#x6237;&#x5730;&#x7406;&#x4F4D;&#x7F6E;&#x7684;&#x4FE1;&#x606F;&#x3002;&#x6CE8;&#x610F;&#xFF0C;&#x8BE5; API &#x53EA;&#x6709;&#x5728; HTTPS &#x534F;&#x8BAE;&#x4E0B;&#x53EF;&#x7528;&#xFF0C;&#x5426;&#x5219;&#x8C03;&#x7528;&#x4E0B;&#x9762;&#x65B9;&#x6CD5;&#x65F6;&#x4F1A;&#x62A5;&#x9519;&#x3002;</p>
<p>Geolocation &#x5BF9;&#x8C61;&#x63D0;&#x4F9B;&#x4E0B;&#x9762;&#x4E09;&#x4E2A;&#x65B9;&#x6CD5;&#x3002;</p>
<ul>
<li>Geolocation.getCurrentPosition()&#xFF1A;&#x5F97;&#x5230;&#x7528;&#x6237;&#x7684;&#x5F53;&#x524D;&#x4F4D;&#x7F6E;</li>
<li>Geolocation.watchPosition()&#xFF1A;&#x76D1;&#x542C;&#x7528;&#x6237;&#x4F4D;&#x7F6E;&#x53D8;&#x5316;</li>
<li>Geolocation.clearWatch()&#xFF1A;&#x53D6;&#x6D88;<code>watchPosition()</code>&#x65B9;&#x6CD5;&#x6307;&#x5B9A;&#x7684;&#x76D1;&#x542C;&#x51FD;&#x6570;</li>
</ul>
<p>&#x6CE8;&#x610F;&#xFF0C;&#x8C03;&#x7528;&#x8FD9;&#x4E09;&#x4E2A;&#x65B9;&#x6CD5;&#x65F6;&#xFF0C;&#x6D4F;&#x89C8;&#x5668;&#x4F1A;&#x8DF3;&#x51FA;&#x4E00;&#x4E2A;&#x5BF9;&#x8BDD;&#x6846;&#xFF0C;&#x8981;&#x6C42;&#x7528;&#x6237;&#x7ED9;&#x4E88;&#x6388;&#x6743;&#x3002;</p>
<h3 id="navigatorcookieenabled">Navigator.cookieEnabled</h3>
<p><code>Navigator.cookieEnabled</code>&#x5C5E;&#x6027;&#x8FD4;&#x56DE;&#x4E00;&#x4E2A;&#x5E03;&#x5C14;&#x503C;&#xFF0C;&#x8868;&#x793A;&#x6D4F;&#x89C8;&#x5668;&#x7684; Cookie &#x529F;&#x80FD;&#x662F;&#x5426;&#x6253;&#x5F00;&#x3002;</p>
<pre><code class="lang-javascript">navigator.cookieEnabled <span class="hljs-comment">// true</span>
</code></pre>
<p>&#x6CE8;&#x610F;&#xFF0C;&#x8FD9;&#x4E2A;&#x5C5E;&#x6027;&#x53CD;&#x6620;&#x7684;&#x662F;&#x6D4F;&#x89C8;&#x5668;&#x603B;&#x7684;&#x7279;&#x6027;&#xFF0C;&#x4E0E;&#x662F;&#x5426;&#x50A8;&#x5B58;&#x67D0;&#x4E2A;&#x5177;&#x4F53;&#x7684;&#x7F51;&#x7AD9;&#x7684; Cookie &#x65E0;&#x5173;&#x3002;&#x7528;&#x6237;&#x53EF;&#x4EE5;&#x8BBE;&#x7F6E;&#x67D0;&#x4E2A;&#x7F51;&#x7AD9;&#x4E0D;&#x5F97;&#x50A8;&#x5B58; Cookie&#xFF0C;&#x8FD9;&#x65F6;<code>cookieEnabled</code>&#x8FD4;&#x56DE;&#x7684;&#x8FD8;&#x662F;<code>true</code>&#x3002;</p>
<h2 id="navigator-&#x5BF9;&#x8C61;&#x7684;&#x65B9;&#x6CD5;">Navigator &#x5BF9;&#x8C61;&#x7684;&#x65B9;&#x6CD5;</h2>
<h3 id="navigatorjavaenabled">Navigator.javaEnabled()</h3>
<p><code>Navigator.javaEnabled()</code>&#x65B9;&#x6CD5;&#x8FD4;&#x56DE;&#x4E00;&#x4E2A;&#x5E03;&#x5C14;&#x503C;&#xFF0C;&#x8868;&#x793A;&#x6D4F;&#x89C8;&#x5668;&#x662F;&#x5426;&#x80FD;&#x8FD0;&#x884C; Java Applet &#x5C0F;&#x7A0B;&#x5E8F;&#x3002;</p>
<pre><code class="lang-javascript">navigator.javaEnabled() <span class="hljs-comment">// false</span>
</code></pre>
<h3 id="navigatorsendbeacon">Navigator.sendBeacon()</h3>
<p><code>Navigator.sendBeacon()</code>&#x65B9;&#x6CD5;&#x7528;&#x4E8E;&#x5411;&#x670D;&#x52A1;&#x5668;&#x5F02;&#x6B65;&#x53D1;&#x9001;&#x6570;&#x636E;&#xFF0C;&#x8BE6;&#x89C1;&#x300A;XMLHttpRequest &#x5BF9;&#x8C61;&#x300B;&#x4E00;&#x7AE0;&#x3002;</p>
<h2 id="screen-&#x5BF9;&#x8C61;">Screen &#x5BF9;&#x8C61;</h2>
<p>Screen &#x5BF9;&#x8C61;&#x8868;&#x793A;&#x5F53;&#x524D;&#x7A97;&#x53E3;&#x6240;&#x5728;&#x7684;&#x5C4F;&#x5E55;&#xFF0C;&#x63D0;&#x4F9B;&#x663E;&#x793A;&#x8BBE;&#x5907;&#x7684;&#x4FE1;&#x606F;&#x3002;<code>window.screen</code>&#x5C5E;&#x6027;&#x6307;&#x5411;&#x8FD9;&#x4E2A;&#x5BF9;&#x8C61;&#x3002;</p>
<p>&#x8BE5;&#x5BF9;&#x8C61;&#x6709;&#x4E0B;&#x9762;&#x7684;&#x5C5E;&#x6027;&#x3002;</p>
<ul>
<li><code>Screen.height</code>&#xFF1A;&#x6D4F;&#x89C8;&#x5668;&#x7A97;&#x53E3;&#x6240;&#x5728;&#x7684;&#x5C4F;&#x5E55;&#x7684;&#x9AD8;&#x5EA6;&#xFF08;&#x5355;&#x4F4D;&#x50CF;&#x7D20;&#xFF09;&#x3002;&#x9664;&#x975E;&#x8C03;&#x6574;&#x663E;&#x793A;&#x5668;&#x7684;&#x5206;&#x8FA8;&#x7387;&#xFF0C;&#x5426;&#x5219;&#x8FD9;&#x4E2A;&#x503C;&#x53EF;&#x4EE5;&#x770B;&#x4F5C;&#x5E38;&#x91CF;&#xFF0C;&#x4E0D;&#x4F1A;&#x53D1;&#x751F;&#x53D8;&#x5316;&#x3002;&#x663E;&#x793A;&#x5668;&#x7684;&#x5206;&#x8FA8;&#x7387;&#x4E0E;&#x6D4F;&#x89C8;&#x5668;&#x8BBE;&#x7F6E;&#x65E0;&#x5173;&#xFF0C;&#x7F29;&#x653E;&#x7F51;&#x9875;&#x5E76;&#x4E0D;&#x4F1A;&#x6539;&#x53D8;&#x5206;&#x8FA8;&#x7387;&#x3002;</li>
<li><code>Screen.width</code>&#xFF1A;&#x6D4F;&#x89C8;&#x5668;&#x7A97;&#x53E3;&#x6240;&#x5728;&#x7684;&#x5C4F;&#x5E55;&#x7684;&#x5BBD;&#x5EA6;&#xFF08;&#x5355;&#x4F4D;&#x50CF;&#x7D20;&#xFF09;&#x3002;</li>
<li><code>Screen.availHeight</code>&#xFF1A;&#x6D4F;&#x89C8;&#x5668;&#x7A97;&#x53E3;&#x53EF;&#x7528;&#x7684;&#x5C4F;&#x5E55;&#x9AD8;&#x5EA6;&#xFF08;&#x5355;&#x4F4D;&#x50CF;&#x7D20;&#xFF09;&#x3002;&#x56E0;&#x4E3A;&#x90E8;&#x5206;&#x7A7A;&#x95F4;&#x53EF;&#x80FD;&#x4E0D;&#x53EF;&#x7528;&#xFF0C;&#x6BD4;&#x5982;&#x7CFB;&#x7EDF;&#x7684;&#x4EFB;&#x52A1;&#x680F;&#x6216;&#x8005; Mac &#x7CFB;&#x7EDF;&#x5C4F;&#x5E55;&#x5E95;&#x90E8;&#x7684; Dock &#x533A;&#xFF0C;&#x8FD9;&#x4E2A;&#x5C5E;&#x6027;&#x7B49;&#x4E8E;<code>height</code>&#x51CF;&#x53BB;&#x90A3;&#x4E9B;&#x88AB;&#x7CFB;&#x7EDF;&#x7EC4;&#x4EF6;&#x7684;&#x9AD8;&#x5EA6;&#x3002;</li>
<li><code>Screen.availWidth</code>&#xFF1A;&#x6D4F;&#x89C8;&#x5668;&#x7A97;&#x53E3;&#x53EF;&#x7528;&#x7684;&#x5C4F;&#x5E55;&#x5BBD;&#x5EA6;&#xFF08;&#x5355;&#x4F4D;&#x50CF;&#x7D20;&#xFF09;&#x3002;</li>
<li><code>Screen.pixelDepth</code>&#xFF1A;&#x6574;&#x6570;&#xFF0C;&#x8868;&#x793A;&#x5C4F;&#x5E55;&#x7684;&#x8272;&#x5F69;&#x4F4D;&#x6570;&#xFF0C;&#x6BD4;&#x5982;<code>24</code>&#x8868;&#x793A;&#x5C4F;&#x5E55;&#x63D0;&#x4F9B;24&#x4F4D;&#x8272;&#x5F69;&#x3002;</li>
<li><code>Screen.colorDepth</code>&#xFF1A;<code>Screen.pixelDepth</code>&#x7684;&#x522B;&#x540D;&#x3002;&#x4E25;&#x683C;&#x5730;&#x8BF4;&#xFF0C;colorDepth &#x8868;&#x793A;&#x5E94;&#x7528;&#x7A0B;&#x5E8F;&#x7684;&#x989C;&#x8272;&#x6DF1;&#x5EA6;&#xFF0C;pixelDepth &#x8868;&#x793A;&#x5C4F;&#x5E55;&#x7684;&#x989C;&#x8272;&#x6DF1;&#x5EA6;&#xFF0C;&#x7EDD;&#x5927;&#x591A;&#x6570;&#x60C5;&#x51B5;&#x4E0B;&#xFF0C;&#x5B83;&#x4EEC;&#x90FD;&#x662F;&#x540C;&#x4E00;&#x4EF6;&#x4E8B;&#x3002;</li>
<li><code>Screen.orientation</code>&#xFF1A;&#x8FD4;&#x56DE;&#x4E00;&#x4E2A;&#x5BF9;&#x8C61;&#xFF0C;&#x8868;&#x793A;&#x5C4F;&#x5E55;&#x7684;&#x65B9;&#x5411;&#x3002;&#x8BE5;&#x5BF9;&#x8C61;&#x7684;<code>type</code>&#x5C5E;&#x6027;&#x662F;&#x4E00;&#x4E2A;&#x5B57;&#x7B26;&#x4E32;&#xFF0C;&#x8868;&#x793A;&#x5C4F;&#x5E55;&#x7684;&#x5177;&#x4F53;&#x65B9;&#x5411;&#xFF0C;<code>landscape-primary</code>&#x8868;&#x793A;&#x6A2A;&#x653E;&#xFF0C;<code>landscape-secondary</code>&#x8868;&#x793A;&#x98A0;&#x5012;&#x7684;&#x6A2A;&#x653E;&#xFF0C;<code>portrait-primary</code>&#x8868;&#x793A;&#x7AD6;&#x653E;&#xFF0C;<code>portrait-secondary</code>&#x3002;</li>
</ul>
<p>&#x4E0B;&#x9762;&#x662F;<code>Screen.orientation</code>&#x7684;&#x4F8B;&#x5B50;&#x3002;</p>
<pre><code class="lang-javascript"><span class="hljs-built_in">window</span>.screen.orientation
<span class="hljs-comment">// { angle: 0, type: &quot;landscape-primary&quot;, onchange: null }</span>
</code></pre>
<p>&#x4E0B;&#x9762;&#x7684;&#x4F8B;&#x5B50;&#x4FDD;&#x8BC1;&#x5C4F;&#x5E55;&#x5206;&#x8FA8;&#x7387;&#x5927;&#x4E8E; 1024 x 768&#x3002;</p>
<pre><code class="lang-javascript"><span class="hljs-keyword">if</span> (<span class="hljs-built_in">window</span>.screen.width &gt;= <span class="hljs-number">1024</span> &amp;&amp; <span class="hljs-built_in">window</span>.screen.height &gt;= <span class="hljs-number">768</span>) {
  <span class="hljs-comment">// &#x5206;&#x8FA8;&#x7387;&#x4E0D;&#x4F4E;&#x4E8E; 1024x768</span>
}
</code></pre>
<p>&#x4E0B;&#x9762;&#x662F;&#x6839;&#x636E;&#x5C4F;&#x5E55;&#x7684;&#x5BBD;&#x5EA6;&#xFF0C;&#x5C06;&#x7528;&#x6237;&#x5BFC;&#x5411;&#x4E0D;&#x540C;&#x7F51;&#x9875;&#x7684;&#x4EE3;&#x7801;&#x3002;</p>
<pre><code class="lang-javascript"><span class="hljs-keyword">if</span> ((screen.width &lt;= <span class="hljs-number">800</span>) &amp;&amp; (screen.height &lt;= <span class="hljs-number">600</span>)) {
  <span class="hljs-built_in">window</span>.location.replace(<span class="hljs-string">&apos;small.html&apos;</span>);
} <span class="hljs-keyword">else</span> {
  <span class="hljs-built_in">window</span>.location.replace(<span class="hljs-string">&apos;wide.html&apos;</span>);
}
</code></pre>




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